Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
David Michael Duffy0
Panagiotis Polygerinos0
Christopher John Wright0
Date of Patent
January 30, 2024
0Patent Application Number
176434250
Date Filed
December 9, 2021
0Patent Citations
Patent Primary Examiner
Patent abstract
The present disclosure relates to a writing instrument comprising a tubular body, a reservoir for an ink composition. The writing instrument comprises a nib comprising a switchable flow material, wherein the switchable flow material is configured to switch between a fluid flow preventing condition and a fluid flow enabling condition by a stimulus. The switchable flow material is configured to control flow of the ink composition from the reservoir to or towards a writing surface.
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